When light travels from one transparent medium into another, the rays bend, or refract. Snell's Law of Refraction states that

Where (1 is the angle of incidence, (2 is the angle of refraction, and n1 and n2 are the indexes of refraction for the two mediums, as shown in the diagram.
a. Find the angle of refraction in water if the angle of incidence from air is 60°.
b. If the angle of refraction from air to water is 45°, at what angle did the ray enter the water?
c. If the angle of incidence is 0°, what is the angle of refraction?

Transcribed Image Text:

sine, sin θ Incident ray; Air Water 133 : Refracted ay